Alfonso Antonio Vicente Eduardo Angel Blas Francisco de Borja Cabeza de Vaca y Leighton, Marquis of Portago, best known as Alfonso de Portago (11 October 1928 – 12 May 1957) was a racing driver from Spain.

Born in London, he was educated at Biarritz,[1] in France.[2] He became articulate in four languages. Portago was heir to one of the most respected titles in Spain[3] and a millionaire.[2] Among his ancestors were an explorer, a Governor of Madrid, and a war hero. His Spanish father was Antonio Cabeza de Vaca. He died during half time at a polo match at a young age. His mother was named Olga Leighton and was Irish. She also had a daughter named Sol. Olga's first husband, Francis John Mackey, was more than 40 years older than she was. He shot himself while terminally ill and left Olga an enormous fortune made as founder of Household Financial.[4]

Portago was 1.83 m tall and weighed 77 kg.[3] De Portago won a $500 bet at the age of 17 when he flew his plane beneath London Bridge. He participated twice in the Grand National Steeplechase at Aintree as a gentleman jockey, although he found keeping his weight down to be a struggle.[3]

de Portago began racing sports cars in 1953 after his meeting with the Ferrari importer in the USA, Luigi Chinetti, who asked him to be his co-driver in the Carrera Panamericana.[1] He later raced alone in a personal Ferrari Sport model at the 1954 1000 km Buenos Aires.[1] de Portago won six major races, including the Tour de France automobile race, the Grand Prix of Oporto, and the Nassau Governor's Cup (twice). In Nassau, during the winter of 1956, Portago trailed the car ahead of him by centimeters while travelling at 240 km/h. Portago used his skill to avert careening into a crowd after the driver ahead of him touched his brakes and both cars went into a 180 m skid. Among sports car enthusiasts, de Portago was known as a two-car man, because of the many burned-out brakes, clutches, transmissions, and wrecked cars for which he was responsible. He often needed several cars to finish a race.[3]

He also was a bobsleigh runner, recruiting several cousins in order to form Spain's first bobsleigh team for the 1956 Winter Olympic Games in Cortina d'Ampezzo .[5] He had had only two or three practice runs in Switzerland before buying a pair of sleds. With de Portago steering, the two-man bob finished fourth to the surprise of the traditional teams, missing out on a medal by 0.16 seconds.[5] He was introduced to bobsledding by an American from Beloit, Wisconsin, Edmund Nelson, whom he later teamed up with in order to win the Tour de France automobile race.

Memorial to victims of Mille Miglia at de Portago's fatal crash location, in Cavriana.

He and his co-driver Edmund Nelson were killed on 12 May 1957[6] in a crash during that year's Mille Miglia, in a straight road section between Cerlongo and Guidizzolo, in the communal territory of Cavriana[1] about 70 km from Brescia, the start and finish point of the event race. The wreck also claimed the lives of nine spectators, among them five children.[1] Portago was apprehensive about competing in the Mille Miglia, a race he considered too dangerous to be run, as he was concerned about the almost complete impossibility about knowing every corner (even with a navigator) and every possible road condition over 1,000 mi (1,600 km). A tire blew on Portago's third-place[6][7]Ferrari 335 S causing it to spin into the crowd lining the highway. He was travelling at 240 km/h (150 mph) when the tire went flat. The 335 hurtled over a canal on the left side of the road, then veered back across the canal, causing the deaths of nine onlookers in total. Two of the dead children were hit by a concrete highway milestone that was ripped from the ground by Portago's car and thrown into the crowd. The bodies of Portago and Nelson were badly disfigured beneath the Ferrari, which was upside down. Portago's body was in two sections.[2]

As T.C. Browne wrote, "The inevitable happened when Alfonso [...] de Portago stopped alongside the course, ran to the fence, kissed Linda Christian, ran back to his Ferrari and drove on to his destiny, killing himself, his co-driver, 10 spectators, and the Mille Miglia".[8]

Once Portago commented, "I won't die in an accident. I'll die of old age or be executed in some gross miscarriage of justice". Nelson countered this assertion, saying de Portago would not live to be 30. According to Nelson, "every time Portago comes in from a race the front of his car is wrinkled where he has been nudging people out of the way at 130 mph (210 km/h)".[3]

In 1949, when he was only twenty, de Portago married American former model Carroll McDaniel (by whom he had two children). McDaniel was several years older than de Portago and they barely knew each other. One of his daughters is photographer Andrea Portago, who was on the June 1977 cover of Andy Warhol's Interview magazine. His son, Anthony, was a stockbroker born around 1954. Supposedly, McDaniel and de Portago were in the process of getting a divorce so he could legitimize his invalid Mexican marriage to fashion modelDorian Leigh (who had already aborted their first baby in 1954 and then gave birth to their son Kim on 27 September 1955). Leigh was eleven years his senior.[9] However, de Portago was also dating actress Linda Christian, actor Tyrone Power's ex-wife.